From: Arnd Bergmann <arnd@xxxxxxxx> [ Upstream commit 499ec0ed5eb2f6a7fcaab2dd66ffc5993484bda9 ] The new backlight code causes a link failure when backlight support itself is disabled: drivers/gpu/drm/omapdrm/displays/panel-dpi.o: In function `panel_dpi_probe_of': panel-dpi.c:(.text+0x35c): undefined reference to `of_find_backlight_by_node' This adds a Kconfig dependency like we have for the other OMAP display targets. Fixes: 39135a305a0f ("drm/omap: displays: panel-dpi: Support for handling backlight devices") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> --- drivers/gpu/drm/omapdrm/displays/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/omapdrm/displays/Kconfig b/drivers/gpu/drm/omapdrm/displays/Kconfig index c226da145fb3..a349cb61961e 100644 --- a/drivers/gpu/drm/omapdrm/displays/Kconfig +++ b/drivers/gpu/drm/omapdrm/displays/Kconfig @@ -35,6 +35,7 @@ config DRM_OMAP_CONNECTOR_ANALOG_TV config DRM_OMAP_PANEL_DPI tristate "Generic DPI panel" + depends on BACKLIGHT_CLASS_DEVICE help Driver for generic DPI panels. -- 2.11.0